TABLE 2.
2,4-DNT toxicity for A. thaliana seedlings
| 2,4-DNT | Strain | Seedling survival (%)c
|
|||
|---|---|---|---|---|---|
| Inoculated soila
|
Inoculated seedsb
|
||||
| 5 days after sowing | 14 days after sowing | 5 days after sowing | 14 days after sowing | ||
| − | 52.0 ± 4.0 | 50.0 ± 6.0 | 65.0 ± 17.0 | 65.0 ± 11.0 | |
| + | 31.0 ± 1.0 | 8.0 ± 2.0 | 35.0 ± 3.0 | 11.0 ± 5.0 | |
| + | P. fluorescens WT | 38.0 ± 8.0 | 47.0 ± 13.0 | 26.0 ± 6.0 | 4.0 ± 2.0 |
| + | P. fluorescens RE | 56.0 ± 8.0 | 60.0 ± 6.0 | 20.0 ± 2.0 | 42.0 ± 10.0 |
| + | Burkholderia sp. strain DNT | 59.0 ± 3.0 | 61.0 ± 1.0 | 36.0 ± 12.0 | 50.0 ± 10.0 |
a
Forty-five to 50 A. thaliana seeds were sown on planting mixture containing or not containing 2,4-DNT (500 μM) and P. fluorescens WT, P. fluorescens RE, or Burkholderia sp. strain DNT.
b
Forty-five to 50 A. thaliana seeds were coated or not coated with one of the strains and sown on bacterium-free planting mixture containing or not containing 2,4-DNT (500 μM).
c
The number of surviving plants was determined 5 or 14 days after sowing. The values are percentages based on the number of seeds sown.